Tree sit protest one year on

Environmental activist Miranda Gibson is celebrating the first anniversary of her tree-top protest.

AAP: Paul Hoelen

Tasmanian anti-logging activist Miranda Gibson is celebrating the first anniversary of her tree-top protest.

The 31 year-old school-teacher has been living in a tree platform 60 metres off the ground at Tyenna in Tasmania's south.

Ms Gibson says she will not come down until she is convinced the state's high-conservation value forests will be protected.

"The international record is two years, so I've got another year to go and that's quite a long way from now."

"And I really hope that I won't have to be up here this time next year. I really hope for the sake of the forests that are being lost every day that they will be protected before I reach that milestone," she said.